Question

Write an equation in point-slope form of the line through point J(4, 2) with slope 3.

Answer 1

sub in what you know.
y=mx+b where m=3, x=4, and y=2. so
2=3(4)+b
2=12+b
2-12=b
b=-10. now you have your m and b, the 2 things you need for your equation. so
y=mx+b
y=2x-10.

Answer 2

Thanks a lot~! that helps me out more than you know :)